We just talked. She's a christian and she deeply regrets it (I already knew she struggled with these things, sex and all that).
She came crying asking for help and I decided to listen to her. I already calmed her down and told her everything's gonna be alright, I can't deny I've never been so pissed off before but I just couldn't send her to hell in that condition. Told her to go to bed and just not think about it.